Improvement in endless-chain power



@nimh tetes-l. @anni f @Hita IMPROVEMENT IN ENDLESSeCHAIN POWER.

TO ALL WHOM IT MAY CONCERN Be it known that I, WILLIAM McCREERY, ofPittsburg, in the county of Allegheny, and State of Pennsylvania, haveinvented new and useful Improvements inEndless-Chain Reversible Powerfor Drawing Cars, the.; and I do hereby declare that the following is u.full, clear, and exact description thereof, which will enable thoseskilled in the art to make and use the same,`rref'erencebeing had to theaccompanying plate of drawings, and to the letters of reference markedthereon, forming part of this specification.

Figure 1 represents an end elevation of my invention.

Figure 2 is a sectional top view.

Similar letters of reference indicate corresponding parts. p

The object of this invention is tol move cars, boats, vessels, or otherheavy or lightbodies in either direction` in depots, stores, houses,locks, doeks,` or other places, by steam, water, or any other power,byattaching a reversiblegear tobe connected when required with the bodyor bodies tobe moved.

A represents a main shaft, connected withy a stationary engine, on whichare placed loosely two small bevelgears, a a, facing each other, andengaging opposite sides of a large horizontalbevel-wheel, b, iixed on n.vertical shaft, B, at the foot of which is a pulley, e, carrying anendless chain, d d, that passes over atrain of pulleys, cl c2 c3 c, tobe placedjat points or distances apart, which maybe required foroperating the chain in moving cars, or any other object to which itmaybe attached. The chain dal is reversed in its operation by twoshiftingclutehcs, e e, on the main shaft A, on opposite sides of' thelarge wheel b, to engage and disengage the small bevels a dsimultaneously, the clutches being moved in and out ct' the bevels a a,on the-oppositev sides, at the same time, by a. lever, g, which Works asliding bar, 7L, connected with the clutches. It will be seen that whenthe clutches are'shifted, the motion of the bevelfwheel zwill bereversed, while the'main shaft runs in the saine direction, and thenthe-endless chain can draw a car or other` object attached to it in orout of a house, Src., or from one pointto another, readily. Thedriving-shaft thus continues in motion without interference with othermachinery connected therewith.

Having thus described my invention, I c laim'as new, and desircftosecure by Letters Patent- The arrangement of the shifting-clutches e e,the bevels a a and b, the pulleys c cl c2 c3 e4, and the endless chain dd, when applied as and for the purposes herein described.

, l WILLIAM MCCREERY,

lWitnesses:

PETER DRnssLER, SAMUEL H. LONG.

